package com.atguigu.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @Classname GuliFeignConfig
 * @Description TODO
 * @Date 2024/7/14 23:56
 * @Created by 369502594
 */
@Configuration
public class GuliFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate template) {
                // 1、RequestContextHolder拿到刚进来的这个请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                if (attributes != null){
                    HttpServletRequest request = attributes.getRequest(); // 老请求
                    if (request != null){
                        // 同步请求头数据，Cookie
                        String cookie = request.getHeader("Cookie");

                        // 给新请求同步了老请求的cookie
                        template.header("Cookie", cookie);
                    }
                }

            }
        };
    }
}
